Margaret W Tumas

US Patent:

6929009, Aug 16, 2005

Filed:

May 16, 2002

Appl. No.:

10/150306

Inventors:

Joshua Makower - Los Altos CA, US
J. Christopher Flaherty - Los Altos CA, US
Timothy R. Machold - Moss Beach CA, US
Jason Brian Whitt - San Francisco CA, US
Margaret W. Tumas - Orinda CA, US
Theodore C. Lamson - Pleasanton CA, US
Marc Jensen - Los Gatos CA, US

Assignee:

Medtronic Vascular, Inc. - Santa Rosa CA

International Classification:

A61B019/00

US Classification:

128898, 606108

Abstract:

Methods and apparatus for direct coronary revascularization wherein a transmyocardial passageway is formed between a chamber of the heart and a coronary blood vessel to permit blood to flow therebetween. In some embodiments, the transmyocardial passageway is formed between a chamber of the heart and a coronary vein. The invention includes unstented transmyocardial passageways, as well as transmyocardial passageways wherein protrusive stent devices extend from the transmyocardial passageway into an adjacent coronary vessel or chamber of the heart. The apparatus of the present invention include protrusive stent devices for stenting of transmyocardial passageways, intraluminal valving devices for valving of transmyocardial passageways, intracardiac valving devices for valving of transmyocardial passageways, endogenous tissue valves for valving of transmyocardial passageways, and ancillary apparatus for use in conjunction therewith.

US Patent:

7159592, Jan 9, 2007

Filed:

Nov 9, 2000

Appl. No.:

09/710332

Inventors:

Joshua Makower - Los Altos CA, US
J. Christopher Flaherty - Los Altos CA, US
Timothy R. Machold - Moss Beach CA, US
Jason Brian Whitt - San Francisco CA, US
Margaret W. Tumas - Orinda CA, US
Theodore C. Lamson - Pleasanton CA, US
Marc Jensen - Los Gatos CA, US

Assignee:

Medtronic Vascular, Inc. - Santa Rosa CA

International Classification:

A61B 19/00

US Classification:

128898, 606108

Abstract:

Methods and apparatus for direct coronary revascularization wherein a transmyocardial passageway is formed between a chamber of the heart and a coronary blood vessel to permit blood to flow therebetween. In some embodiments, the transmyocardial passageway is formed between a chamber of the heart and a coronary vein. The invention includes unstented transmyocardial passageways, as well as transmyocardial passageways wherein protrusive stent devices extend from the transmyocardial passageway into an adjacent coronary vessel or chamber of the heart. The apparatus of the present invention include protrusive stent devices for stenting of transmyocardial passageways, intraluminal valving devices for valving of transmyocardial passageways, intracardiac valving devices for valving of transmyocardial passageways, endogenous tissue valves for valving of transmyocardial passageways, and ancillary apparatus for use in conjunction therewith.

US Patent:

7648517, Jan 19, 2010

Filed:

Jul 24, 2001

Appl. No.:

09/912122

Inventors:

Joshua Makower - Los Altos CA, US
J. Christopher Flaherty - Los Altos CA, US
Timothy R. Machold - Moss Beach CA, US
Jason Brian Whitt - San Francisco CA, US
Philip Christopher Evard - Palo Alto CA, US
Patrick Edward Macauley - San Jose CA, US
John Thomas Garibotto - Newark CA, US
Margaret W. Tumas - Orinda CA, US
Alan Robert Selfridge - Los Gatos CA, US

Assignee:

Medtronic Vascular, Inc. - Santa Rosa CA

International Classification:

A61B 17/32
A61B 8/00

US Classification:

606169, 600439

Abstract:

The inventions described in this patent application include i) a torqueable introducer sheath which is useable in conjunction with a transvascular passageway forming catheter to effect precise rotational control of the catheter; ii) an anchorable guide catheter which is useable in conjunction with an intravascular imaging catheter and a transvascular passageway-forming catheter to effect precise positioning and aiming of the passageway-forming catheter; iii) a passageway forming catheter having a torqueable proximal portion to facilitate precise rotational positioning of the distal portion of the catheter; iv) a deflectable-tipped passageway forming catheter, v) various markers and other apparatus useable in conjunction with any of the passageway-forming catheters to facilitate precise positioning and aiming of the catheter, and vi) an apparatus which may be formed within a catheter to prevent a member, apparatus of flow of material from being inadvertently advanced through a lumen of the catheter.

US Patent:

7849860, Dec 14, 2010

Filed:

Jan 30, 2006

Appl. No.:

11/343936

Inventors:

Joshua Makower - Los Altos CA, US
J. Christopher Flaherty - Topsfield MA, US
Timothy R. Machold - Moss Beach CA, US
Jason Brian Whitt - San Francisco CA, US
Margaret W. Tumas - Orinda CA, US
Theodore C. Lamson - Pleasanton CA, US
Marc Jensen - Los Gatos CA, US

Assignee:

Medtronic Vascular, Inc. - Santa Rosa CA

International Classification:

A61B 17/00

US Classification:

128898

Abstract:

Methods and apparatus for direct coronary revascularization wherein a transmyocardial passageway is formed between a chamber of the heart and a coronary blood vessel to permit blood to flow therebetween. In some embodiments, the transmyocardial passageway is formed between a chamber of the heart and a coronary vein. The invention includes unstented transmyocardial passageways, as well as transmyocardial passageways wherein protrusive stent devices extend from the transmyocardial passageway into an adjacent coronary vessel or chamber of the heart. The apparatus of the present invention include protrusive stent devices for stenting of transmyocardial passageways, intraluminal valving devices for valving of transmyocardial passageways, intracardiac valving devices for valving of transmyocardial passageways, endogenous tissue valves for valving of transmyocardial passageways, and ancillary apparatus for use in conjunction therewith.

US Patent:

20020062146, May 23, 2002

Filed:

Nov 26, 2001

Appl. No.:

09/994222

Inventors:

Joshua Makower - Los Altos CA, US
J. Flaherty - Los Altos CA, US
Timothy Machold - Moss Beach CA, US
Jason Whitt - San Francisco CA, US
Margaret Tumas - Orinda CA, US
Theodore Lamson - Pleasanton CA, US
Marc Jensen - Los Gatos CA, US

International Classification:

A61F002/06
A61F002/24
A61F009/00

US Classification:

623/001130, 128/898000, 623/002140, 623/001240, 623/904000

Abstract:

Methods and apparatus for direct coronary revascularization wherein a transmyocardial passageway is formed between a chamber of the heart and a coronary blood vessel to permit blood to flow therebetween. In some embodiments, the transmyocardial passageway is formed between a chamber of the heart and a coronary vein. The invention includes unstented transmyocardial passageways, as well as transmyocardial passageways wherein protrusive stent devices extend from the transmyocardial passageway into an adjacent coronary vessel or chamber of the heart. The apparatus of the present invention include protrusive stent devices for stenting of transmyocardial passageways, intraluminal valving devices for valving of transmyocardial passageways, intracardiac valving devices for valving of transmyocardial passageways, endogenous tissue valves for valving of transmyocardial passageways, and ancillary apparatus for use in conjunction therewith.

US Patent:

20100094259, Apr 15, 2010

Filed:

Dec 10, 2009

Appl. No.:

12/634850

Inventors:

Joshua Makower - Los Altos CA, US
J. Christopher Flaherty - Los Altos CA, US
Timothy R. Machold - Moss Beach CA, US
Jason Brian Whitt - San Francisco CA, US
Philip Christopher Evard - Palo Alto CA, US
Patrick Edward Macaulay - San Jose CA, US
John Thomas Garibotto - Newark CA, US
Margaret W. Tumas - Orinda CA, US
Alan Robert Selfridge - Los Gatos CA, US

Assignee:

Medtronic Vascular, Inc. - Santa Rosa CA

International Classification:

A61M 25/00
A61B 17/22
A61F 2/84
A61B 18/18
A61M 29/00
G05D 3/12

US Classification:

604528, 606159, 623 111, 606 41, 606191, 700302

Abstract:

The inventions described in this patent application include i) a torqueable introducer sheath which is useable in conjunction with a transvascular passageway forming catheter to effect precise rotational control of the catheter; ii) an anchorable guide catheter which is useable in conjunction with an intravascular imaging catheter and a transvascular passageway-forming catheter to effect precise positioning and aiming of the passageway-forming catheter; iii) a passageway forming catheter having a torqueable proximal portion to facilitate precise rotational positioning of the distal portion of the catheter; iv) a deflectable-tipped passageway forming catheter, v) various markers and other apparatus useable in conjunction with any of the passageway-forming catheters to facilitate precise positioning and aiming of the catheter, and vi) an apparatus which may be formed within a catheter to prevent a member, apparatus of flow of material from being inadvertently advanced through a lumen of the catheter.

US Patent:

63028751, Oct 16, 2001

Filed:

Apr 11, 1997

Appl. No.:

8/837294

Inventors:

Joshua Makower - Los Altos CA
J. Christopher Flaherty - Los Altos CA
Timothy R. Machold - Moss Beach CA
Jason Brian Whitt - San Francisco CA
Philip Christopher Evard - Palo Alto CA
Patrick Edward Macaulay - San Jose CA
John Thomas Garibotto - Newark CA
Margaret W. Tumas - Orinda CA
Alan Robert Selfridge - Los Gatos CA

Assignee:

TransVascular, Inc. - Menlo Park CA

International Classification:

A61M 3700

US Classification:

604528

Abstract:

The inventions described in this patent application include i) a torqueable introducer sheath which is useable in conjunction with a transvascular passageway forming catheter to effect precise rotational control of the catheter; ii) an anchorable guide catheter which is useable in conjunction with an intravascular imaging catheter and a transvascular passageway-forming catheter to effect precise positioning and aiming of the passageway-forming catheter; iii) a passageway forming catheter having a torqueable proximal portion to facilitate precise rotational positioning of the distal portion of the catheter; iv) a deflectable-tipped passageway forming catheter, v) various markers and other apparatus useable in conjunction with any of the passageway-forming catheters to facilitate precise positioning and aiming of the catheter, and vi) an apparatus which may be formed within a catheter to prevent a member, apparatus of flow of material from being inadvertently advanced through a lumen of the catheter.

US Patent:

20140236207, Aug 21, 2014

Filed:

Mar 6, 2014

Appl. No.:

14/199901

Inventors:

- Santa Rosa CA, US
Christopher Flaherty - Los Altos CA, US
Timothy R. Machold - Moss Beach CA, US
Jason Brian Whitt - San Francisco CA, US
Philip Christopher Evard - Palo Alto CA, US
Patrick Edward Macaulay - San Jose CA, US
John Thomas Garibotto - Newark CA, US
Margaret W. Tumas - Orinda CA, US
Alan Robert Selfridge - Los Gatos CA, US

Assignee:

Medtronic Vascular, Inc. - Santa Rosa CA

International Classification:

A61B 17/34

US Classification:

606185

Abstract:

The inventions described in this patent application include i) a torqueable introducer sheath which is useable in conjunction with a transvascular passageway forming catheter to effect precise rotational control of the catheter; ii) an anchorable guide catheter which is useable in conjunction with an intravascular imaging catheter and a transvascular passageway-forming catheter to effect precise positioning and aiming of the passageway-forming catheter; iii) a passageway forming catheter having a torqueable proximal portion to facilitate precise rotational positioning of the distal portion of the catheter; iv) a deflectable-tipped passageway forming catheter, v) various markers and other apparatus useable in conjunction with any of the passageway-forming catheters to facilitate precise positioning and aiming of the catheter, and vi) an apparatus which may be formed within a catheter to prevent a member, apparatus of flow of material from being inadvertently advanced through a lumen of the catheter.